How To Apply Npk Fertilizer To Yam & Application Rate

Nitrogen, phosphorus, and potassium (NPK) are macronutrients Yam needs to grow. NPK Fertilizers supply yam with these nutrients, increasing the plant’s ability to grow and survive. The objective of applying NPK fertilizer to yam is to supply your yam with macronutrients in quantities that promote growth without being excessive. In this article, we’ll go over the best NPK fertilizer for yam, its recommended application rate, as well as other types of fertilizer you can use for the yam plants.

Yam NPK Fertilizer Requirement and Application Rate

Yam plant

Yams require NPK fertilizers for good growth. If you want your yams to grow big and strong, you’ll need to give them the right fertilizer. The best NPK fertilizer for yam is NPK 20:10:10.

Yam plants require an NPK 20:10:10 fertilizer at a recommended application rate of 400kg/ha. However, some growers may choose to use a combination of plant residues and NPK fertilizer for better yam yield. A combination of these two fertilizers may be the most sustainable method for your yam crop.

Fertilizers are used to help yam grow strong and healthy. They are made from a variety of different materials, such as manure or compost. Some fertilizers contain only one type of nutrient, while others may include several different types in varying amounts. In order to know how much fertilizer you should use for your yams, it’s important that you understand what types of nutrients are needed and their functions.

NPK fertilizers are some of the most popular fertilizers and are known for their ability to increase production by as much as 30%. These fertilizers work by supplying nutrients that plants need, but that may not be present in the soil. This can be especially beneficial when soil conditions are poor. The basic ingredients of NPK fertilizer are nitrogen, phosphorus, and potassium. Each of these nutrients is essential for plant health and growth, and each plays a different role in the process of photosynthesis.

Nitrogen promotes leafy growth; phosphorus encourages root development; potassium helps with water retention and disease resistance. Potash also encourages flowering in certain varieties of yams like the sweet potato vine (Ipomoea batatas). All three of these nutrients are essential to a yam’s health and development.

List of Commercial NPK Fertilizers For Yam

NPK Fertilizers are of great importance to the cultivation of yam. These fertilizers are well known to promote growth and development in yam. Commercial fertilizers contain nitrogen, phosphorus, and potassium. NPK fertilizers are used in all types of farming activities to boost production and yield. The following is a list of commercial NPK fertilizers for yam:

Expert Gardener 10-10-10 All Purpose Fertilizer (1, 40LB)

Expert Gardener 10-10-10 All Purpose Fertilizer (1, 40LB)

Price : $40.29

Features :

  • Contain Nitrogen, Potassium, and Phosphorus in the right quantity.
  • Great for Yam plant

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The Andersons PGF Balanced 10-10-10 Fertilizer with Micronutrients and 2% Iron (5,000 sq ft)

The Andersons PGF Balanced 10-10-10 Fertilizer with Micronutrients and 2% Iron (5,000 sq ft)

Price : $43.88 ($0.15 / Ounce)

Features :

  • PGF Balanced 10-10-10 is a professional grade fertilizer with extremely fine particle size ensuring every square inch of your lawn/garden receives the same amount of nutrients
  • Can be used any time during the growing season but is ideal for spring and fall applications on lawns, gardens and flower beds
  • Contains all quick-release nitrogen to provide the plant with immediate nutrition
  • Includes micronutrients and 2% iron for extra-deep greening – Blow off sidewalks and driveways after application to avoid staining
  • Each bag provides up to 5,000 square feet of coverage
  • Not for sale in CA

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J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer

J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer

Price : $16.02 ($0.67 / Ounce)

Features :

  • All indoor and outdoor plants, tree, vegetables and surf
  • It feeds both through the roots and the leaves. This formula of nitrogen, phosphorus and potassium provides fast green-up and rapid leaf expansion
  • Indoors it is especially effective on foliage plants, keeping leaves green. A proven performer in the vegetable garden for generations

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Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

Price : $34.99 ($0.27 / Ounce)

Features :

  • OSMOCOTE QUALITY: Osmocote is the original slow-release plant food. Decades of rigorous field testing confirm product effectiveness with hundreds of plant species in a variety of climate and soil conditions.
  • OSMOCOTE’S BEST FORMULA: Each homogeneous granule contains 15-9-12 NPK plus micro and secondary nutrients and feeds up to 6 full months.
  • OSMOCOTE’S SECRET: Soil temperature controls how Osmocote releases its nutrients, and more importantly how nutrients are taken up by the plant. Replenishment and feeding are in natural harmony.
  • OSMOCOTE’S DIRECTIONS FOR USE: 1 pound of Osmocote covers 37.5 sq. ft. (approx. 6’ x 6’). Works best when mixed into 1 – 3 inches of soil. Package includes applicator. In containers, mix 1 pound with 19 gallons of potting soil.
  • OSMOCOTE IS MISTAKE-PROOF: Even if over-applied up to 3x the recommended rate, Osmocote does not ‘burn’ the plant.
  • OSMOCOTE CONFIDENCE: Performance is guaranteed. If unsatisfied, return the empty package to The Scotts Company for a full refund.

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Method of Applying NPK Fertilizer To Yam

There are several ways to apply NPK fertilizer to yam. NPK Fertilizers can be applied to Yam either by band placement, broadcasting, or Topdressing.

Band Placement

Band placement usually involves applying fertilizer in bands next to the row of plants. This method is used for small areas or when plants are spaced far apart. The fertilizer is placed in bands about 2 inches wide. The width of the band will vary depending on the type of crop being grown and the type of fertilizer being used.


Broadcasting involves applying fertilizer over a large area with a spreader or broadcast spreader. The number of pounds per acre varies depending on what you are fertilizing and how much yield you want to get from your crop. You should broadcast half of your fertilizer after planting, then broadcast the rest when the plants reach half their mature size.


Topdressing is the method of applying NPK fertilizer on the soil surface. It involves spreading the fertilizer on top of the soil and then raking it into the top several inches of soil. This method is ideal for young plants since it ensures that the nutrients are readily available to the plant.

The first step in the topdressing method is to prepare the soil well ahead of time. The soil should be loosened and leveled by tilling or plowing it. It should also be free of weeds and roots, which can compete with your plants for nutrients and water.

When To Apply NPK Fertilizer To Yam

The best time to apply fertilizer depends on several factors: the type and age of your yam plant, what kind of fertilizer you’re using, and whether or not your soil has been depleted of nutrients by previous crops. It is best to apply the fertilizer in the early stages of growth and during the growing season. You can also apply it in the late stages of growth. The NPK 20:10:10 fertilizer should be applied to Yam at 8 weeks after planting for best results.

The best time to apply NPK fertilizer to yams is in the early spring. This will help them get a strong start and make them more resistant to diseases like black rot and foot rot. You can also apply it during the summer months if you see signs of disease or if you’re just looking to give your yams an extra boost. Just be sure not to fertilize too much—this could damage their roots,

Benefits of Applying NPK Fertilizer To Yam

We all know that NPK fertilizer is the best way to make sure your yams get the nutrients they need, but did you know that there are some other benefits that come with applying this type of fertilizer to your yam plants?

The benefits of applying NPK fertilizer include:

  • An increase in yield
  • Improved growth rates
  • Reduced pest damage during flowering stages
  • Increased resistance to disease and insects like mites (which can cause leaf curl)
  • Better coloration of leaves due to chlorophyll production which means more photosynthesis taking place inside the plant

Other Fertilizers For Yam

Aside from the NPK fertilizers, You can also use the following fertilizers for yam:

1) Azomite: Azomite is a natural mineral fertilizer with a wide range of nutrients, including iron, phosphorus, potassium, and calcium. It also contains trace minerals such as zinc, manganese, and copper. It can be applied to yams before planting or as a top-dressing after planting.

2) Blood Meal: Blood meal is high in nitrogen and can be used on yams at any growth stage, but should not be used in early spring or fall when temperatures are below 50 degrees Fahrenheit (10 degrees Celsius).

3) Bone Meal: A bone meal is another good option for yams because it provides phosphorous and calcium, two nutrients that are essential for proper growth and development in plants.

4) Cottonseed Meal: Cottonseed meal is high in nitrogen and phosphorus and can be used on yams at any growth stage, but should not be used in early spring or fall when temperatures are below 50 degrees Fahrenheit (10 degrees Celsius).

5) Fish emulsion: Fish emulsion is another organic fertilizer that helps provide nutrients to your yam plants. It contains nitrogen, phosphorus, and potassium so it’s perfect for helping to keep your plants healthy.

6) Manure: Manure contains not only N, P, and K but also other micronutrients such as iron, zinc, and boron that are important for plant growth. It’s important not just to consider how much manure you’re adding but also where it came from. Manure from herbivores like cattle and horses contains high levels of nitrogen and phosphorus, while

Final words,

Fertilizer is that thing that helps apply nutrients to land and trigger the growth of yam. Many yam gardeners have been using NPK fertilizers in their gardens as it has been proven to showcase fast results and growth of beautiful yams. When you apply NPK fertilizer to the yam, it feeds the plant with the needed nitrogen, phosphorus, and potassium (NPK) which triggers growth.

1 thought on “How To Apply Npk Fertilizer To Yam & Application Rate”

  1. I’m Francis by name, am a yam farmer which I need a buyer when is thebtime of selling, location Ekiti state Nigeria. Thanks


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